The present invention provides a battery emergency charging method of an electric special vehicle which allows emergency charging between battery packs without connecting to an external power source. The battery emergency charging method of an electric special vehicle comprises: a step of checking start-off state of a vehicle if a charging request of a second battery pack is received from a user; a step of checking the remaining battery of a first battery pack to determine whether the remaining battery is higher than or equal to a predetermined value; a step of stopping the operation of freezing-refrigeration equipment mounted in the cargo box of the vehicle by switching off a third relay if the remaining battery of the first battery pack is higher than or equal to the predetermined value as a result of the determination; a step of checking the state and abnormal status of the first battery pack; a step of checking the state and abnormal status of the second battery pack if the first battery pack is normal as a result of the checking; a step of switching on a first and a second relay and operating a bidirectional OBC and a bidirectional converter if the second battery pack is normal as a result of the checking to charge the second battery pack; a step of checking the remaining battery of the first battery pack; and a step of finishing charging when a predetermined range is reached by checking the state of charge of the second battery pack in real time if the remaining battery of the first battery pack is higher than or equal to the predetermined value as a result of the checking.
본 발명에서는 사용자로부터 제2배터리팩의 충전 요청이 있는 경우, 차량의 시동 오프 상태를 확인하는 단계, 제1배터리팩의 배터리 잔량을 확인하여 미리 정해진 값 이상인지 여부를 판단하는 단계, 판단결과, 제1배터리팩의 배터리 잔량이 미리 정해진 값 이상일 경우, 제3릴레이를 오프(off) 동작시켜 차량의 적재함에 장치된 냉동·냉장설비의 작동을 중지시키는 단계, 제1배터리팩의 상태 및 이상 유무를 확인하는 단계, 확인결과, 제1배터리팩이 정상이면, 제2배터리팩의 상태 및 이상 유무를 확인하는 단계, 확인결과, 제2배터리팩이 정상이면, 제1 및 제2릴레이를 온(on) 동작시키고, 양방향 OBC와 양방향 컨버터를 작동시켜 제2배터리팩을 충전하는 단계, 제1배터리팩의 배터리 잔량을 확인하는 단계, 확인결과, 제1배터리팩의 배터리 잔량이 미리 정해진 값 이상일 경우, 제2배터리팩의 배터리 충전 상태를 실시간으로 확인하여 미리 정해진 범위에 도달하면 충전을 완료하는 단계를 포함하는 일렉트릭 특장차의 배터리 비상충전방법을 개시한다.
BATTERY EMERGENCY CHARGING METHOD OF ELECTRIC SPECIAL VEHICLE
일렉트릭 특장차의 배터리 비상충전방법
2022-11-23
Patent
Elektronische Ressource
Koreanisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60P Fahrzeuge zum Transport von Lasten oder zum Befördern, Tragen oder Aufnehmen besonderer Lasten oder Gegenstände , VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS |
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